670 W. Fireweed Ln, Ste 200 Anchorage, AK (907) 276-0521 l www.rsa-ak.com

Mechanical & Electrical Engineers

August 31, 2024

United States Department of the Interior National Park Service Denver Service Center 12795 W. Alameda Parkway P.O. Box 25287 Denver, CO 80225-0287

ATTENTION: Susan Lehmann

Dear Susan, REFERENCE: NPS Arc Flash Evaluation - WRST Trip Report

On 06/17/24 through 06/21/24 Davin Blubaugh and Aidan Blessing with RSA Engineering travelled to Wrangell-St. Elias National Park & Preserve (WRST) to investigate the electrical distribution systems. The intent of the site visits was to gather enough information on the equipment to provide an accurate arc flash calculation, provide warning labels for the equipment, and observe/record any obvious code deficiencies.

One-line diagrams have been generated for each facility based upon our site investigation. These one-line diagrams show the details of the power distribution system at each site/building, and those details are not replicated within the below report.

Arc-flash calculations were performed for all 3-phase distribution systems/equipment. The equipment operating at 120/240V, single-phase or less, was not included within the arc-flash calculations and were provided with generic arc-flash warning labels only.

In general, the electrical distribution system at all sites was in good to fair condition. Common items such as working space violations, equipment labeling, and missing junction box covers were noted throughout, but overall, the deficiencies observed were minimal. A Flir thermal imaging camera was used on all equipment to look for hot spots occurring from loose connections or damaged breakers, and no such hot spots were observed on any equipment. The following report addresses the code deficiencies and recommendations observed during our site investigation.

Copper Center:

The electrical distribution system for Copper Center begins at the Garage Building in the center of the complex roughly halfway between the Headquarters Building (Admin) and the Visitor Center.

The electrical service is fed with 480V, 3-phase underground from a Copper Valley Electric Association (CVEA) pad-mounted utility transformer to a wall-mounted tap box on the exterior of the Garage building which feeds the site fire pump and an exterior mounted Main Distribution Panel ‘MDP1’. ‘MDP1’ feeds all buildings on the site and steps down at various transformers: one located in the mezzanine of the Garage, one on the exterior of the Visitor Center, one under the Marc Building, and one outside of the Headquarters (Admin) Building.

The Visitor Center Main Distribution Panel ‘MDP2’ is located on the exterior and feeds the Visitor Center, The Exhibit Building, the Comfort Station (Restroom), and the Theater. The distribution panel on the exterior of the Marc Building (labeled ‘MBDL’ on the one-line) is a 120/240V, single-phase distribution panel which feeds the Marc Building and the Resource Building.

Reference the facility one-line diagram for electrical distribution system details.

August 30, 2024

An arc-flash analysis has been performed for the three-phase equipment within the electrical distribution system at Copper Center. The results of this analysis are included within the attachments at the end of this report.

Code Deficiencies

1. Garage Building:

a. Panel ‘GA’ is partially missing dead front cover over main lugs. Provide new dead front cover to fully enclose main lugs to protect against accidental electrical contact per NEC 110.27.

b. Neutral wire appears to be abandoned and not properly capped in garage building (Image #1). Either demolish neutral wire back to source, or properly enclose abandoned wire with junction box as required by NEC 300.15.

c. Panel ‘MDP1’ schedule is missing a label for the Marc Building feeder. Provide updated circuit directories for panelboard per NEC 408.4.

d. The neutral and ground were not bonded at Disconnect ‘DGA’ and we could not verify if the neutral was bonded within the upstream transformer. Confirm neutral and ground bond at secondary side of XFMR ‘TGA’ (located on mezzanine) and if it does not exist, provide one as required by NEC 250.24(A)(5).

2. Visitor Center:

a. Panel ‘VCO’ is partially missing dead front cover over main lugs (Image #2).

Provide new dead front cover to fully enclose main lugs to protect against accidental electrical contact per NEC 110.27.

3. Exhibit Building:

a. Junction box in crawlspace is missing a cover. Tuck in conductors and provide new junction box cover as required per NEC section 314.25.

4. Admin Building:

a. Panel ‘HQ0’ has a piece of wire being utilized as a handle-tie to connect circuit breakers #38 and #40 together for a multi-wire branch circuit (Image #3). Remove the wire and provide a listed 2-pole handle-tie device.

5. Generator Shed:

a. Panel ‘HQE1’ does not have panel schedule. Trace out circuit in panel and provide clear, evident, and distinguishable typed circuit directories for panelboard per NEC 408.4.

6. Resource Building:

a. Panel ‘RL2’ schedule is missing information on circuit breakers 7-10. Provide clear, evident, and distinguishable circuit directory for panelboard per NEC 408.4.

Electrical Recommendations

1. All Buildings - Recommend providing unique equipment id’s and clearly labeling all electrical equipment with phenolic labels denoting equipment name, amperage, voltage, and source.

2. Garage Building:

a. Panel ‘GAE’ has an abandoned conductor within the panel. Recommend demolishing abandoned conductors and associated conduit and junction boxes completely.

b. Panels ‘GA’ and ‘GAE’ have neutrals that are shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutrals are handle-tied together.

c. No emergency lighting was observed at garage building. Recommend providing emergency lighting near ‘MDP1’ and the electrical equipment within the building to allow for troubleshooting during power outages.

3. Visitor Center:

a. Panel ‘VCO’ has neutrals that are shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements.

Recommend that all circuits with shared neutrals are handle-tied together.

Copper Center Cultural Center:

The Cultural Center building at Copper Center is fed underground from a separate 120/240V, single-phase CVEA pad-mounted transformer located near the main Copper Center site 3-phase transformer. The building power distribution system is limited to the service equipment and a single panel which feeds all loads for the building.

Code Deficiencies

1. Emergency lights are non-functional. Recommend repairing or replacing non-functioning emergency lights to ensure path of egress is illuminated under loss of power.

2. FACP breaker in panel was lockable, but not code required red colored. Recommend providing a new red “FIRE” lockable handle, or at a minimum paint the handle lock red.

1. No further electrical recommendations for this area.

Copper Center Box Cabins:

The Box Cabin area at Copper Center is fed underground from a 120/240V, single-phase pole-mounted CVEA utility transformer. The site electrical system is limited to the service equipment, a panel in the “Main House”, a Cabin distribution panel, Cabin disconnects, and individual enclosed circuit breakers feeding each Cabin (reference the one-line for system details).

1. Conductors from Combination Meterbase/Disconnect (CMD) to panel ‘Cabin Distribution’ are undersized for the existing 200A upstream overcurrent protection device. Recommend intercepting the circuit at the CMD and adding a 100A breaker within 10-feet of the CMD

(per NEC 240.21) or (worst case) replace the #2 AWG conductors with #3/0 AWG copper conductors that are properly sized for 200A 2-Pole breaker per NEC 310.16.

2. CMD does not have a panel schedule. Provide clear, evident, and distinguishable circuit directory for panelboard per NEC 408.4.

3. PVC Conduits is unsupported on all box cabins typical (Image #4), and is not properly seated in the Cabin Distribution Panel. Properly secure/support and fasten PVC in accordance with NEC 352.30.

Electrical Recommendations

1. Panel ‘Main House’ and Panels ‘Cabin 1’ through ‘Cabin 8’ do not have Arc Fault

Interrupting Circuits (AFCI) protected breakers. Recommend providing new AFCI breakers for all panels and providing dual AFCI/GFCI breakers for circuits that currently have GFCI breakers per NEC 210.12. This was likely not a code requirement at the time of installation, but has since been added to the NEC.

2. Recommend providing unique equipment id’s and clearly labeling all electrical equipment with phenolic labels denoting equipment name, amperage, voltage, and source.

Gulkana Hangar:

The Gulkana Hangar is a single-phase service fed underground from a nearby pole-mounted CVEA utility transformer. The building electrical system is limited to the service equipment, two panels, an exterior generator and associated generator transfer switch/panel combination device which feeds standby power to minimal equipment in the building. Reference the one-line for system details.

1. There is conduit separation at the CMD exposing conductors (Image #5). Correct conduit installation to conceal/protect conductors.

2. The #8 AWG copper conductors feeding the ATS/Panel combination device in the Hangar are tapped off of the line side of the main lugs of the Hangar Panel. There is no overcurrent device at the point of termination in the ATS/Panel which is a violation of NEC 240.21 for tapped conductors. Recommend adding a 30A, 2-pole breaker within the Hangar Panel to feed the ATS/Panel. Note, this will require rearranging breakers/circuits within the panel to allow for a new 2-pole breaker.

3. Panel ‘SAR’ in the southwest corner of the building does not have a panel schedule. Provide clear, evident, and distinguishable circuit directory for panelboard per NEC 408.4.

Electrical Recommendations

4. Recommend providing unique equipment id’s and clearly labeling all electrical equipment

Glenallen Main Shop:

The Main Shop building in Glenallen is fed with a 120/208V, 3-phase service overhead from a bank of three (3) 10kVA pole-mounted CVEA utility transformers. The service equipment and MDP is located on the outside of the Shop building and feeds the Mechanical Shop panels, Carpenter Shop Panels, Shed Building, and Storage Garage. Reference the one-line for system details.

An arc-flash analysis has been performed for the three-phase equipment within the electrical distribution system at the Glenallen Main Shop. The results of this analysis are included within the attachments at the end of this report.

1. The CMD and MDP mounted on the exterior of the shop are installed too high off of the ground for adequate access per NEC 240.24 and the enclosure below the CMD violates the required working clearances per NEC 110.26 (Image #6). A platform could be built to access the equipment, but the enclosure below the CMD would need to be relocated.

Alternatively, the CMD and MDP could be lowered and shifted over, however, that would require additional work relocating conduit and wire.

2. The MDP is missing blank space fillers exposing the interior of the panel. Provide additional blank space filler plates.

3. The Carpenter shop main panel (labeled as ‘CSL1’ on the one-line) is missing blank space fillers exposing the interior of the panel. Provide additional blank space filler plates.

4. The Shed Panel (labeled as ‘SBL1’ on the one-line) is inaccessible due to the amount of stored materials in front (Image #7). Remove stored items to allow for adequate NEC

110.26 working space.

5. The Storage Garage panel (labeled as ‘SGL1’ on the one-line) is missing blank space fillers exposing the interior of the panel. Provide additional blank space filler plates

1. The Mechanical Shop main panel (labeled as ‘MSL1’ on the one-line diagram) and several breakers within the panel are manufactured by Zinsco. All of Zinsco’s electrical equipment was recalled years ago due to fire hazards and failures. Recommend replacing this panel and all breakers with a new panel.

Glenallen Pumphouse:

The Pumphouse building in Glenallen is fed with a 120/240V, 1-phase service underground from a 10kVA pad-mounted CVEA utility transformer. The service equipment is a CMD on the exterior of the building which feeds the Pumphouse interior panel and also feeds the adjacent Trail Maintenance Building. Reference the one-line for system details.

1. No code deficiencies were noted for the Pumphouse or Trail Maintenance Buildings.

Electrical Recommendations

1. Recommend providing unique equipment id’s and clearly labeling all electrical equipment

Glenallen Housing:

The Glenallen Housing area is comprised of two main multi-family dwelling buildings, Building A (4-housing unit and a shared Boiler Room) and Building B (2-housing unit and a shared Boiler Room).

Each building is fed underground from the same pad-mounted CVEA utility transformer located on the west end of the site. Each building has a multi-meter pack for service equipment to individually meter each unit and respective Boiler Room. Reference the one-line for system details.

1. Panel ‘DA’ within the Garage of Unit A2 has a NEC 110.26 working space violation with the

HRV ductwork (Image #8). Recommend relocating the ductwork out of the panel working space.

1. No further recommendations for the Glenallen Housing area.

Slana Visitor Center:

The Slana Visitor Center is fed overhead from a 120/240V, single-phase, pole-mounted CVEA utility transformer to a CMD mounted to the exterior of the Garage Building. The CMD feeds to the Garage Panel which feeds out to the Sleeping Cabins, Bunkhouse and Visitor Center Buildings. The CMD also has a separate feeder to the Fish Weir Office. Reference the one-line for system details.

1. The Garage Building panel has missing knockouts exposing the interior of the panel to dirt/dust/debris. Provide knockout fillers to seal panel.

2. The #12 AWG copper feeder conductors from the Garage Building Panel to Sleeping Cabin

#1 and #2 are undersized for the 30A breaker in the Panel. Recommend replacing the 30A, 2-pole breaker with a new 20A, 2-pole breaker.

3. The feeders from the Garage Panel to the exterior mounted Bunkhouse ECB and from the

Bunkhouse ECB to the exterior mounted Visitor Center ECB do not contain an Equipment

Grounding Conductor (EGC) and at least a portion of the conduits are non-metallic PVC, meaning that the conduit cannot serve as a ground path for the feeders. Provide an EGC within the feeder conduit per NEC 250.122 requirements.

4. There are several locations onsite where the neutral wire and ground wire are bonded within enclosures. The neutral and ground should only be bonded in one location at the service

CMD. Remove all neutral to ground bonds downstream of the service equipment. This was noted at the Enclosed Circuit Breaker (ECB) on the exterior of the bunkhouse, the ECB on the exterior of the Visitor Center, Sleeping Cabin #1 panel, and the Sleeping Cabin #2 panel, although a thorough investigation of all equipment should take place to ensure all grounds and neutrals are properly isolated.

5. The Bunkhouse Panel has a NEC 110.26 working space clearance violation with the water heater installed in front of the Panel. Recommend relocating the water heater to provide adequate NEC clearances (Image 9).

6. The disconnect on the exterior of the Fish Weir Office is not properly grounded, the EGC needs to be identified with green tape (currently white conductor), and the conduit feeding the equipment is separated from the enclosure (Image #10). Recommend connecting the incoming EGC to the enclosure, provide green tape on EGC, and correct the conduit installation.

Electrical Recommendations

1. Recommend demolishing the Old Generator Breaker and associated feeder between the breaker and the Manual Transfer Switch (MTS) as the generator is no longer present and the equipment is not needed.

Slana Ranger Residence:

The Slana Ranger Residence is fed overhead from a 120/240V, single-phase, pole-mounted CVEA utility transformer to a CMD mounted to the exterior of the Garage Building. The CMD feeds to the Garage Panel which feeds out to the Residence. Reference the one-line for system details.

1. The Garage Panel has duct tape covering several open spaces in the panel (Image #11).

Provide approved blank spaces fillers in-lieu of duct tape.

2. The Garage Panel schedule does not appear to be accurate as there is an unlabeled circuit breaker in spaces 21 & 23. Provide clear, evident, and distinguishable circuit directory for panelboard per NEC 408.4.

3. The feeders from the Garage Panel to the exterior mounted Residence Panelboard do not contain an Equipment Grounding Conductor (EGC) and at least a portion of the conduit is non-metallic PVC, meaning that the conduit cannot serve as a ground path for the feeders.

Provide an EGC within the feeder conduit per NEC 250.122 requirements.

4. The Panel inside of the Ranger Residence (Labeled Panel ‘B’ on the one-line) has numerous flexible conduits that require adequate supporting per NEC 348.30 (Image #12).

Electrical Recommendations

Slana Freed Property:

The Slana Freed Property is fed overhead from a 120/240V, single-phase, pole-mounted CVEA utility transformer to a CMD mounted to the exterior of the main House. The CMD feeds to the interior House Panel which feeds the Cabins on site. The CMD also feeds an abandoned Waste Water Treatment Building behind the House. Reference the one-line for system details.

1. The House Panel is located in the kitchen and does not have adequate working clearances per NEC 110.26. The only way to provide adequate clearances would be to remove some of the counter and cabinets or relocate the panel (Image #13).

Electrical Recommendations

1. Recommend removing the feeder and electrical equipment associated with the abandoned

Waste Water Treatment Building.

McCarthy West Side Complex:

The McCarthy West Side Complex consists of an Electrical Building, Support Building, Communication Cabin, and Well House. The site is powered via a propane generator and solar/battery system housed within the Electrical Building and all loads are distributed out from there to the other buildings at 120/240V, single-phase. Reference the one-line for system details.

1. Support Building Panel is missing blank space filler. Provide blank space filler for panel.

Electrical Recommendations

McCarthy Airport:

The McCarthy Airport building consists primarily of an Electrical/Boiler Room and a Ranger Station Office area. The site is powered via a propane cogeneration unit and a solar/battery system housed within the Electrical/Boiler Room. All building loads are powered from a panel in the Electrical/Boiler Room and another smaller panel in the Ranger Station office at 120/240V, single-phase. Reference the one-line for system details.

1. No code deficiencies noted for the McCarthy Airport.

1. The wiring interface between the cogeneration unit and the solar/battery system was not very well documented. Recommend displaying a single schematic diagram within the building showing the major system components (cogen unit, solar panels, batteries, inverters, panels, etc) for ease of maintenance and troubleshooting.

Kennecott:

The power distribution system for the main historic site at Kennecott begins at the Electrical connexes (labeled as Power Plant or ‘NP’ on the one-line) located on the south end of the site. The Power Plant was recently upgraded back in 2021/2022 with four (4) new solar arrays, charge controllers, 74kWh battery bank, inverters, power distribution panels, and a new 25kW diesel generator. The project was designed by Design Alaska with Construction Drawings dated 3/11/2021 and the equipment was supplied and installed by RMC engineering out of Juneau, AK. This new Power Plant provides power to all of the NPS buildings at Kennecott, with the exception of Silk Stocking Row and the National Creek Water Treatment Shed, which both have their own onsite microgrids (reference next sections).

The AC side of the site distribution begins at Panel ‘A’ within the new power plant and steps up the site voltage to 480V, 3-phase for distribution. From the new Power Plant the site distribution routes underground to the north to hit various distribution panels and step-down transformers throughout the site. The one-line diagram provided documents the entire electrical distribution system and references the buildings each piece of equipment is located within. Reference the one-line for system details.

An arc-flash analysis has been performed for the three-phase equipment within the electrical distribution system at Kennecott. The results of this analysis are included within the attachments at the end of this report.

1. The Wash House Panel (labeled as Panel ‘WHL1’ on the one-line) does not have adequate

NEC 110.26 working clearances due to the stacked washer/dryer in front of the Panel

(Image #14).

2. The 120/208V Distribution Panel in the Transformer (Old Gen Shed) Building (labeled as

Panel ‘TBDL’ on the one-line diagram and labeled ‘MDP1’ in the field) is downstream of a step-down transformer and requires a Main Circuit Breaker (MCB) per NEC 408.36 (Image

#15). Recommend providing an additional 225A, 3-pole breaker in an available space within the panel and moving the line side terminations from the main lugs to the new circuit breaker.

3. The Panel in the General Manager’s Office is located in a closet under the stairs and does not have adequate NEC 110.26 working space headroom (Image #16).

Electrical Recommendations

1. Recommend placing a system one-line diagram at major electrical distribution panel locations and denoting a “You are here” location identifier to assist with maintenance and troubleshooting of the electrical system. Suggested locations would be the New Power

Plant, Rec Center electrical shed, Transformer Building (Old Gen Shed), Leaching Plant, and the Old Power Plant.

Kennecott Silk Stocking Row:

Silk Stocking Row consists of a Garage Building that houses the main electrical equipment, an adjacent Generator Shed, the North House and the South House. The site is powered via a small diesel generator and a battery/inverter system. The battery inverter system is within the Garage Building and feeds a Garage Panel that feeds the Garage loads as well as panels in the North and South Houses at 120/240V, single-phase. Reference the one-line for system details.

1. The North House Panel is installed within a cabinet thus violating adequate NEC 110.26 working space requirements (Image #17). Suggest removing the cabinet to allow for proper clearances.

Electrical Recommendations

Kennecott National Creek Water Treatment Shed:

The Water Treatment Shed has a small solar/battery system that feeds a sine-wave inverter and a single 20A, 120V circuit breaker for the shed loads. Reference the one-line for system details.

1. The Water Treatment Shed Panel does not have a panel schedule, though the single receptacle it feeds is fairly apparent (Image #18). Provide clear, evident, and distinguishable circuit directory for panelboard per NEC 408.4.

2. Given the nature of the small shed, there is not sufficient NEC 110.26 working clearance for the Panel.

1. No further recommendations for the Water Treatment Shed.

(REFERENCED IMAGES LOCATED ON THE FOLLOWING PAGES)

Image #1 – Garage Building abandoned conductor

Image #2 – Visitor Center Panel ‘VC0’ missing main lug cover

Image #3 – Admin Building Panel ‘HQ0’ unlisted handle-tie

Image #4 – Box Cabin PVC conduit needing supports

Image #5 – Gulkana Hangar conduit separation

Image #6 – Glenallen Shop CMD and MDP NEC 110.26 & 240.24 violation

Image #7 – Shed Building panel NEC

110.26 clearance issues

Image #8 – Glenallen Housing Unit A2 Panel ‘DA’ NEC 110.26 violation

Image #9 – Bunkhouse Panel NEC 110.26 working space violation

Image #10 – Slana VC Fish Weir Office Disconnect issues (reference report)

Image #11 – Slana Ranger Residence Garage Panel duct tape

Image #12 – Slana Ranger Residence Interior Panel flex conduit

Image #13 – Slana Freed House Panel NEC 110.26 violation

Image #14 – Kennecott Wash House Panel NEC 110.26 working space violation

Image #15 – Kennecott Transformer Bldg Distribution Panel needing MCB

Image #16 – Kennecott GMO Panel NEC

110.26 working space violation

Image #17 – Kennecott Silk Stocking North House NEC 110.26 violation

Image #18 – Kennecott National Creek Shed Panel missing schedule and NEC

110.26 violation

If you have any questions concerning the above, please do not hesitate to call.

Sincerely, Davin Blubaugh Senior Electrical Engineer db/ab 24-0347/M3144 Attachments

UTIL-0001

S

P

XFMR-UTILITY

CBL-0001

BUS-TAP BOX

InitSymRMS 3P 5493.31 A InitSymRMS SLG 5163.53 A

CBL-0002 CBL-0003

DISC-SERVICE

InitSymRMS 3P 5334.86 A InitSymRMS SLG 4940.83 A

PD-SERV DISC

DISC-DFP

InitSymRMS 3P 5416.95 A InitSymRMS SLG 5041.81 A

PD-FP

CBL-0004 CBL-0005

MC-FP

MTR-FP

CBL-0006

PANEL-MDP1

InitSymRMS 3P 5319.53 A InitSymRMS SLG 4919.60 APD-FEDR-GA

CBL-0007

DISC-DGA

InitSymRMS 3P 2972.17 A InitSymRMS SLG 3054.89 A

PD-GA

CBL-0008

CBL-0009

PANEL-GA

InitSymRMS 3P 2942.32 A InitSymRMS SLG 3002.07 A

PD-FEDR-WTCP

PANEL-WTCP

InitSymRMS 3P 2677.54 A InitSymRMS SLG 2559.13 A

CBL-0010

PD-FEDR-VC

CBL-0011

CBL-0012

PANEL-MDP2

InitSymRMS 3P 3652.67 A InitSymRMS SLG 3971.01 A

PD-FEDR-VC1

PANEL-VC1

InitSymRMS 3P 3240.59 A InitSymRMS SLG 3208.77 A

CBL-0014

PD-MDP2

PD-FEDR-VC0

PANEL-VC0

InitSymRMS 3P 3237.42 A InitSymRMS SLG 3211.03 A

CBL-0015

PD-FEDR-VCEL

CBL-0016

DISC-DVCEL

InitSymRMS 3P 2695.67 A InitSymRMS SLG 2301.28 A

PD-GA0

S

P

XFMR-TGA

S

P

XFMR-TVC

CBL-0017

MTR-VCEL

PD-FEDR-HQ

CBL-0013

DISC-DHQ

InitSymRMS 3P 3652.31 A InitSymRMS SLG 3971.70 A

PD-GA1

CBL-0018

CBL-0019

PANEL-HQ

InitSymRMS 3P 3407.69 A InitSymRMS SLG 3505.82 APD-FEDR-HQ0

PANEL-HQ0

InitSymRMS 3P 3259.48 A InitSymRMS SLG 3246.67 A

CBL-0020

S

P

XFMR-THQ

PD-FEDR-HQB

PANEL-HQB

InitSymRMS 3P 3325.43 A InitSymRMS SLG 3366.37 A

CBL-0021

PD-FEDR-HQ1

PANEL-HQ1

InitSymRMS 3P 2988.30 A InitSymRMS SLG 2803.82 A

CBL-0022

PD-FEDR-HQ2

PANEL-HQ2

InitSymRMS 3P 2864.96 A InitSymRMS SLG 2616.83 A

CBL-0023

PD-FEDR-HQEL

CBL-0024

DISC-DHQEL

InitSymRMS 3P 3148.38 A InitSymRMS SLG 3033.13 A

PD-GA2

CBL-0025

MTR-HQEL

WRST - ARC FLASH ANALYSIS - COPPER CENTER

FACILITY ONE-LINE DIAGRAM

AUGUST 31, 2024

DAPPER Fault Analysis Input Report (English)

Project: Copper Center

Base Project

Utilities

Contribution

From Name

Bus

Name

In/Out

Service

Nominal

Voltage

-------- Contribution Data -------- PU (100 MVA Base)

X PUR PUX/RUnitsDuty

UTIL-0001 BUS-0001 12,470 MVA 9,999.00In 1,000,000

SLG:

3P:

MVA 9,999.00

Pos:

Zero:333,333

0.0001

0.00010.0000

0.0000

Motors

Contribution

From Name

Bus

Name

In/Out

Service

Nominal

Voltage

--------- Contribution Data --------

Base kVA Xd" X/R

PU (100 MVA Base)

R PU X PU

# of

Motors

MTR-FP BUS-0007 480 40.11 0.1507 4.90 76.717 375.834In1

MTR-HQEL BUS-0027 208 15.04 0.1507 4.90 204.577 1,002.225In1

MTR-VCEL BUS-0026 208 15.04 0.1507 4.90 204.577 1,002.225In1

Cables

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

BUS-0002

BUS-TAP BOX

1 50 500 PVC Pos:

Zero:

0.6380 1.0113

2.4891

CBL-0001 In

2.0095

MagneticCopper

BUS-TAP BOX

DISC-SERVICE

1 30 500 PVC Pos:

Zero:

0.3828 0.6068

1.4935

CBL-0002 In

1.2057

MagneticCopper

BUS-TAP BOX

DISC-DFP

1 3 6 PVC Pos:

Zero:

0.6641 0.0892

0.2197

CBL-0003 In

2.0927

MagneticCopper

DISC-SERVICE

PANEL-MDP1

1 3 500 PVC Pos:

Zero:

0.0383 0.0607

0.1493

CBL-0004 In

0.1206

MagneticCopper

DISC-DFP

BUS-0006

1 40 6 PVC Pos:

Zero:

8.8542 1.1892

2.9288

CBL-0005 In

27.9028

MagneticCopper

BUS-0008

BUS-0007

1 10 6 PVC Pos:

Zero:

2.2135 0.2973

0.7322

CBL-0006 In

6.9757

MagneticCopper

PANEL-MDP1

BUS-0022

1 60 2 PVC Pos:

Zero:

5.2604 1.5234

3.7500

CBL-0007 In

16.5781

MagneticCopper

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

BUS-0023

DISC-DGA

1 25 1/0 PVC Pos:

Zero:

7.3965 3.1204

7.6796

CBL-0008 In

23.3104

MagneticCopper

DISC-DGA

PANEL-GA

1 3 1/0 PVC Pos:

Zero:

0.8876 0.3744

0.9216

CBL-0009 In

2.7972

MagneticCopper

PANEL-GA

PANEL-WTCP

1 20 2 PVC Pos:

Zero:

9.3380 2.7043

6.6568

CBL-0010 In

29.4286

MagneticCopper

PANEL-MDP1

BUS-0024

1 150 1/0 PVC Pos:

Zero:

8.3333 3.5156

8.6523

CBL-0011 In

26.2630

MagneticCopper

BUS-0025

PANEL-MDP2

1 30 500 PVC Pos:

Zero:

2.0386 3.2313

7.9535

CBL-0012 In

6.4210

MagneticCopper

PANEL-MDP1

BUS-0032

1 200 3/0 PVC Pos:

Zero:

6.9878 4.5052

11.0938

CBL-0013 In

22.0226

MagneticCopper

PANEL-MDP2

PANEL-VC1

1 25 2 PVC Pos:

Zero:

11.6725 3.3804

8.3210

CBL-0014 In

36.7858

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

PANEL-MDP2

PANEL-VC0

1 30 1 PVC Pos:

Zero:

11.0947 3.9525

9.7286

CBL-0015 In

34.9621

MagneticCopper

PANEL-MDP2

DISC-DVCEL

1 75 2 PVC Pos:

Zero:

35.0176 10.1412

24.9630

CBL-0016 In

110.3573

MagneticCopper

DISC-DVCEL

BUS-0026

1 20 2 PVC Pos:

Zero:

9.3380 2.7043

6.6568

CBL-0017 In

29.4286

MagneticCopper

BUS-0033

DISC-DHQ

1 30 500 PVC Pos:

Zero:

2.0386 3.2313

7.9535

CBL-0018 In

6.4210

MagneticCopper

DISC-DHQ

PANEL-HQ

1 50 500 PVC Pos:

Zero:

3.3977 5.3855

13.2558

CBL-0019 In

10.7017

MagneticCopper

PANEL-HQ

PANEL-HQ0

1 10 2 PVC Pos:

Zero:

4.6690 1.3522

3.3284

CBL-0020 In

14.7143

MagneticCopper

PANEL-HQ

PANEL-HQB

1 10 3/0 PVC Pos:

Zero:

1.8607 1.1996

2.9540

CBL-0021 In

5.8640

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

PANEL-HQ

PANEL-HQ1

1 30 2 PVC Pos:

Zero:

14.0070 4.0565

9.9852

CBL-0022 In

44.1429

MagneticCopper

PANEL-HQ

PANEL-HQ2

1 40 2 PVC Pos:

Zero:

18.6760 5.4087

13.3136

CBL-0023 In

58.8573

MagneticCopper

PANEL-HQ

DISC-DHQEL

1 20 2 PVC Pos:

Zero:

9.3380 2.7043

6.6568

CBL-0024 In

29.4286

MagneticCopper

DISC-DHQEL

BUS-0027

1 20 2 PVC Pos:

Zero:

9.3380 2.7043

6.6568

CBL-0025 In

29.4286

MagneticCopper

2-Winding Transformers

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

XFMR-TGA BUS-0022 D 480 90

BUS-0023

WG 208 208

75.0 Pos:

Zero:

56.8067

56.8067

25.8213

25.8213

In

XFMR-THQ BUS-0032 D 480 135

BUS-0033

WG 208 312

112.5 Pos:

Zero:

28.0818

28.0818

38.3787

38.3787

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

XFMR-TVC BUS-0024 D 480 135

BUS-0025

WG 208 312

112.5 Pos:

Zero:

28.0818

28.0818

38.3787

38.3787

XFMR-UTILITY BUS-0001 D 12,470 12

BUS-0002

WG 480 311

225.0 Pos:

Zero:

8.6667

8.6667

21.3333

21.3333

DAPPER Fault Contribution Complete Report

Comprehensive Short Circuit Study Settings

Three Phase Fault

Single Line to Ground

Line to Line Fault

Line to Line to Ground

All BusesFaulted Bus

Yes

Yes

Yes

No

No

Motor Contribution

Transformer Tap

Xformer Phase Shift

Yes

Yes

Bus Voltages

Branch Currents

Phase or Sequence

Fault Current Calculation

Asym Fault Current at Time 0.50

First Bus From Fault

First Branch From Fault

Report phase quantities

Asymmetrical RMS (with DC offset and Decay)

Cycles

Project: Copper Center

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

DISC-DFP 5,417 005,042 5,777 005,306

InCABLECBL-0005 331 00203310 00193 InCABLECBL-0003 5,451 005,1075,111 004,852 5,042

DISC-DGA 2,972 003,055 2,972 003,055

InCABLECBL-0009 0 0000 000 InCABLECBL-0008 2,972 003,0552,972 003,055 3,055

DISC-DHQ 3,652 003,972 3,717 004,031

InCABLECBL-0019 272 00197267 00194 InCABLECBL-0018 3,463 003,8473,402 003,790 3,972

DISC-DHQEL 3,148 003,033 3,183 003,048

InCABLECBL-0025 273 00174270 00174

InCABLECBL-0024 2,935 002,8892,903 002,875 3,033

DISC-DVCEL 2,696 002,301 2,702 002,302

InCABLECBL-0017 271 00154270 00154

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

InCABLECBL-0016 2,476 002,1732,470 002,172 2,301

DISC-SERVICE 5,335 004,941 5,738 005,263

InCABLECBL-0004 236 00144220 00136 InCABLECBL-0002 5,504 005,1205,117 004,806 4,941

PANEL-GA 2,942 003,002 2,943 003,002

InCABLECBL-0010 0 0000 000 InCABLECBL-0009 2,943 003,0022,942 003,002 3,002

PANEL-HQ 3,408 003,506 3,470 003,557

InCABLECBL-0022 0 0000 000 InCABLECBL-0021 0 0000 000 InCABLECBL-0023 0 0000 000 InCABLECBL-0020 0 0000 000 InCABLECBL-0024 274 00187269 00184 InCABLECBL-0019 3,214 003,3823,156 003,333 3,506

PANEL-HQ0 3,259 003,247 3,302 003,272

InCABLECBL-0020 3,302 003,2723,259 003,247 3,247

PANEL-HQ1 2,988 002,804 3,009 002,811

InCABLECBL-0022 3,009 002,8112,988 002,804 2,804

PANEL-HQ2 2,865 002,617 2,880 002,621

InCABLECBL-0023 2,880 002,6212,865 002,617 2,617

PANEL-HQB 3,325 003,366 3,381 003,407

InCABLECBL-0021 3,381 003,4073,325 003,366 3,366

PANEL-MDP2 3,653 003,971 3,706 004,023

InCABLECBL-0014 0 0000 000 InCABLECBL-0015 0 0000 000 InCABLECBL-0016 269 00195266 00192 InCABLECBL-0012 3,455 003,8403,404 003,791 3,971

PANEL-VC0 3,237 003,211 3,259 003,221

InCABLECBL-0015 3,259 003,2213,237 003,211 3,211

PANEL-VC1 3,241 003,209 3,260 003,217

InCABLECBL-0014 3,260 003,2173,241 003,209 3,209

PANEL-WTCP 2,678 002,559 2,678 002,559

InCABLECBL-0010 2,678 002,5592,678 002,559 2,559

Arc Flash Evaluation Report

Project: Copper Center

Base Project

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus kV

2.000MaxTripTime @2.0s 15.6789.87 18.00

0.480DISC-DFP 4.905.42 4.03 3.64 0.000 2.000 In Box Arc-rated shirt & pants or arc-rated coverall or arc-rated arc flash suit

2.000PD-FEDR-GA 5.1044.50 18.000.208DISC-DGA 2.972.97 1.22 1.22 0.000 2.000 In Box Arc-rated shirt & pants or arc-rated coverall or arc-rated arc flash suit

2.000PD-FEDR-HQ 5.9749.13 18.00

0.208DISC-DHQ 3.403.65 1.53 1.42 0.000 2.000 In Box Arc-rated shirt & pants or

1.957PD-FEDR-HQEL 4.8943.37 18.00

0.208DISC-DHQEL 2.903.15 1.30 1.20 0.000 1.957 In Box Arc-rated shirt & pants or

2.000PD-FEDR-VCEL 4.1739.27 18.00

0.208DISC-DVCEL 2.472.70 1.10 1.00 0.000 2.000 In Box Arc-rated shirt & pants or

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus kV

2.000MaxTripTime @2.0s 15.3888.81 18.000.480DISC-SERVICE 4.825.33 3.96 3.58 0.000 2.000 In Box Arc-rated shirt & pants or arc-rated coverall or arc-rated

2.000PD-GA 5.0444.19 18.00

0.208PANEL-GA 2.942.94 1.21 1.21 0.000 2.000 In Box Arc-rated shirt & pants or

2.000PD-GA1 5.4946.62 18.00

0.208PANEL-HQ 3.163.41 1.42 1.31 0.000 2.000 In Box Arc-rated shirt & pants or

2.000PD-FEDR-HQ0 4.5441.39 18.00

0.208PANEL-HQ0 3.263.26 1.16 1.16 0.000 2.000 In Box Arc-rated shirt & pants or arc flash suit

2.000PD-FEDR-HQ1 4.1439.07 18.000.208PANEL-HQ1 2.992.99 1.06 1.06 0.000 2.000 In Box Arc-rated shirt & pants or arc-rated coverall or arc-rated

2.000PD-FEDR-HQ2 4.5741.54 18.00

0.208PANEL-HQ2 2.862.86 1.17 1.17 0.000 2.000 In Box Arc-rated shirt & pants or

2.000PD-FEDR-HQB 5.3545.87 18.00

0.208PANEL-HQB 3.333.33 1.38 1.38 0.000 2.000 In Box Arc-rated shirt & pants or arc flash suit

0.024PD-MDP2 0.083.26 18.000.208PANEL-MDP2 3.403.65 1.53 1.42 0.000 0.024 In Box No Arc-rated PPE Required

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus

2.000PD-FEDR-VC0 4.5641.48 18.00

0.208PANEL-VC0 3.243.24 1.15 1.15 0.000 2.000 In Box Arc-rated shirt & pants or

2.000PD-FEDR-VC1 4.5641.50 18.00

0.208PANEL-VC1 3.243.24 1.15 1.15 0.000 2.000 In Box Arc-rated shirt & pants or

2.000PD-FEDR-WTCP 4.5441.37 18.00

0.208PANEL-WTCP 2.682.68 1.09 1.09 0.000 2.000 In Box Arc-rated shirt & pants or

UTIL-CVEA

S

P

XFMR-UTIL

CBL-SERVICE

PD-SERV DISC

CBL-MDP

MDP

InitSymRMS 3P 1333.87 A InitSymRMS SLG 1243.49 A

PD-FEDR SB PD-FEDR MS PD-FEDR CS

CBL-SHED-DISC CBL-MECH SHOP CBL-CARP SHOP

DISC-DSB

InitSymRMS 3P 1069.76 A InitSymRMS SLG 896.45 A

PANEL-SBL1

InitSymRMS 3P 1054.08 A InitSymRMS SLG 877.91 A

CBL-SHED-PNL

PD-SBL1

PANEL-MSL1

InitSymRMS 3P 1265.52 A InitSymRMS SLG 1146.44 A

PD-MSL1

PANEL-CSL1

InitSymRMS 3P 1195.51 A InitSymRMS SLG 1052.54 A

PD-CSL1

PD-CARPENTER SHOP SUB PANEL

PANEL-CSL2

InitSymRMS 3P 1188.11 A InitSymRMS SLG 1042.85 A

CBL-CSL2

DISC-SERVICE

InitSymRMS 3P 1338.08 A InitSymRMS SLG 1249.60 A

WRST - ARC FLASH ANALYSIS - GLENALLEN

Project: Glennallen Main Shop

Base Project

Utilities

Contribution

From Name

Bus

Name

In/Out

Service

Nominal

Voltage

-------- Contribution Data -------- PU (100 MVA Base)

X PUR PUX/RUnitsDuty

UTIL-CVEA BUS-0001 12,470 MVA 9,999.00In 1,000,000

SLG:

3P:

MVA 9,999.00

Pos:

Zero:333,333

0.0001

0.00010.0000

0.0000

Cables

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

MDP

PANEL-CSL1

1 75 1/0 PVC Pos:

Zero:

22.1894 9.3611

23.0388

CBL-CARP SHOP In

69.9311

MagneticCopper

PANEL-CSL1

PANEL-CSL2

1 3 2 PVC Pos:

Zero:

1.4007 0.4056

0.9985

CBL-CSL2 In

4.4143

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

DISC-SERVICE

MDP

1 3 3/0 PVC Pos:

Zero:

0.5582 0.3599

0.8862

CBL-MDP In

1.7592

MagneticCopper

MDP

PANEL-MSL1

1 35 1/0 PVC Pos:

Zero:

10.3550 4.3685

10.7514

CBL-MECH SHOP In

32.6345

MagneticCopper

BUS-0002

DISC-SERVICE

1 135 1/0 XLP Pos:

Zero:

65.5279 14.0417

35.6971

CBL-SERVICE In

104.1582

Non-MagneticAluminum

MDP

DISC-DSB

1 160 1/0 PVC Pos:

Zero:

47.3373 19.9704

49.1494

CBL-SHED-DISC In

149.1864

MagneticCopper

DISC-DSB

PANEL-SBL1

1 8 2 PVC Pos:

Zero:

3.7352 1.0817

2.6627

CBL-SHED-PNL In

11.7715

MagneticCopper

2-Winding Transformers

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

XFMR-UTIL BUS-0001 D 12,470 2

BUS-0002

WG 208 96

30.0 Pos:

Zero:

125.0000

125.0000

68.0000

68.0000

Three Phase Fault

Single Line to Ground

Line to Line Fault

Line to Line to Ground

All BusesFaulted Bus

Yes

Yes

Yes

No

No

Motor Contribution

Transformer Tap

Xformer Phase Shift

Yes

Yes

Bus Voltages

Branch Currents

Phase or Sequence

Fault Current Calculation

Asym Fault Current at Time 0.50

First Bus From Fault

First Branch From Fault

Report phase quantities

Asymmetrical RMS (with DC offset and Decay)

Cycles

Project: Glennallen Main Shop

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

DISC-DSB 1,070 00896 1,070 00896

InCABLECBL-SHED-PNL 0 0000 000 InCABLECBL-SHED-DISC 1,070 008961,070 00896 896

DISC-SERVICE 1,338 001,250 1,338 001,250

InCABLECBL-MDP 0 0000 000 InCABLECBL-SERVICE 1,338 001,2501,338 001,250 1,250

MDP 1,334 001,243 1,334 001,243

InCABLECBL-SHED-DISC 0 0000 000 InCABLECBL-MECH SHOP 0 0000 000 InCABLECBL-CARP SHOP 0 0000 000 InCABLECBL-MDP 1,334 001,2431,334 001,243 1,243

PANEL-CSL1 1,196 001,053 1,196 001,053

InCABLECBL-CSL2 0 0000 000 InCABLECBL-CARP SHOP 1,196 001,0531,196 001,053 1,053

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

PANEL-CSL2 1,188 001,043 1,188 001,043

InCABLECBL-CSL2 1,188 001,0431,188 001,043 1,043

PANEL-MSL1 1,266 001,146 1,266 001,146

InCABLECBL-MECH SHOP 1,266 001,1461,266 001,146 1,146

PANEL-SBL1 1,054 00878 1,054 00878

InCABLECBL-SHED-PNL 1,054 008781,054 00878 878

Project: Glennallen Main Shop

Base Project

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus

2.000PD-FEDR SB 1.6421.86 18.00

0.208DISC-DSB 1.071.07 0.40 0.40 0.000 2.000 In Box Arc-rated shirt & pants or arc flash suit

2.000MaxTripTime @2.0s 2.1125.61 18.000.208DISC-SERVICE 0.001.34 0.51 0.00 0.000 2.000 In Box Arc-rated shirt & pants or arc-rated coverall or arc-rated

2.000PD-SERV DISC 2.1025.55 18.00

0.208MDP 1.331.33 0.51 0.51 0.000 2.000 In Box Arc-rated shirt & pants or

2.000PD-FEDR CS 1.8623.65 18.00

0.208PANEL-CSL1 1.201.20 0.45 0.45 0.000 2.000 In Box Arc-rated shirt & pants or arc flash suit

2.000PD-CARPENTER

SHOP SUB PANEL

1.8423.54 18.00

0.208PANEL-CSL2 1.191.19 0.45 0.45 0.000 2.000 In Box Arc-rated shirt & pants or

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus kV

2.000PD-MSL1 1.9824.62 18.000.208PANEL-MSL1 1.271.27 0.48 0.48 0.000 2.000 In Box Arc-rated shirt & pants or arc-rated coverall or arc-rated

2.000PD-SBL1 1.6121.64 18.00

0.208PANEL-SBL1 1.051.05 0.40 0.40 0.000 2.000 In Box Arc-rated shirt & pants or

GEN-0001

Isc 3P 561 A

Isc SLG 561 A

PD-GEN

BUS-GEN

Isc 3P 561 A

Isc SLG 561 A

BUS-PDP PP

Isc 3P 556 A

Isc SLG 552 A

CBL-0001

Isc 3P 556 A

Isc SLG 552 A

PANEL A-NP

Isc 3P 552 A

Isc SLG 547 A

PD-PNL A-MCB

CBL-0002

Isc 3P 552 A

Isc SLG 547 A

PD-SITE-FEDR

CBL-0004

Isc 3P 550 A

Isc SLG 544 A

PD-PNL B FEDR

CBL-0005

Isc 3P 546 A

Isc SLG 538 A

BUS-PANEL B-NP

Isc 3P 546 A

Isc SLG 538 A

BUS-IN-GRADE JB

Isc 3P 203 A

Isc SLG 276 A

CBL-0006

Isc 3P 203 A

Isc SLG 276 A

DISC-DDB

Isc 3P 202 A

Isc SLG 274 A

CBL-0007

Isc 3P 202 A

Isc SLG 274 A

CBL-0008

Isc 3P 202 A

Isc SLG 273 A

PD-0005

CBL-0009

Isc 3P 369 A

PD-DBL1

PANEL-DBL1

Isc 3P 369 A

CBL-0010

Isc 3P 193 A

Isc SLG 246 A

S

P

XFMR-TRC

Isc 3P 356 A

PD-RCDL

PANEL-RCDL

Isc 3P 354 A

S

P

XFMR-TDB

Isc 3P 373 A

S

P

XF2-SITE

Isc 3P 206 A

Isc SLG 288 A

DISC-DRC

Isc 3P 193 A

Isc SLG 246 A

PD-0006

CBL-0011

Isc 3P 193 A

Isc SLG 246 A

PANEL-RCDH

Isc 3P 193 A

Isc SLG 246 A

PD-RCDH

PD-FEDR RCDL

CBL-0012

Isc 3P 193 A

Isc SLG 246 A

CBL-0013

Isc 3P 354 A

PD-FEDR TB

S

P

XFMR-TTB

Isc 3P 391 A

PANEL-TBDL

Isc 3P 391 A

CBL-0014

Isc 3P 182 A

Isc SLG 213 A

CBL-0015

Isc 3P 391 A

CBL-0016

Isc 3P 182 A

Isc SLG 213 A

PANEL-TBDH

Isc 3P 182 A

Isc SLG 213 A

PD-TBDH

PD-TBDL

PD-FEDR LP

PD-FEDR GS

CBL-0017

Isc 3P 381 A

PD-MDP GS PANEL-MDP GS

Isc 3P 381 A

PD-FEDR SUB A

PANEL SUB-A GS

Isc 3P 381 A

CBL-0018

Isc 3P 381 A

PANEL-LPDH

Isc 3P 168 A

Isc SLG 179 A

S

P

XFMR-TLP

Isc 3P 330 A

PD-LPDL

PANEL-LPDL

Isc 3P 329 A

CBL-0019

Isc 3P 329 A

PD-480V DIST MCB-LP

CBL-0020

Isc 3P 168 A

Isc SLG 179 A

PD-208V DIST PNL FEDR-LP

CBL-0021

Isc 3P 167 A

Isc SLG 179 A

DISC-DOP

Isc 3P 159 A

Isc SLG 162 A

CBL-0022

Isc 3P 159 A

Isc SLG 161 A

PD-0007

CBL-0023

Isc 3P 273 A

PD-OPDL

PANEL-OPDL

Isc 3P 273 A

S

P

XFMR-TOP

Isc 3P 273 A

CBL-0024

Isc 3P 159 A

Isc SLG 162 A

BUS-PNL LP LINESIDE TAP

Isc 3P 168 A

Isc SLG 179 A

CBL-0025

Isc 3P 168 A

Isc SLG 179 A

WRST - ARC FLASH ANALYSIS - KENNECOTT

Project: Kennecott

Base Project

Generators

Contribution

From Name

Bus

Name

In/Out

Service

Nominal

Voltage

-------- Contribution Data --------

Base kVA X" X/R

PU (100 MVA Base)

R PU X PU

GEN-0001 208BUS-GEN 31.25 4.01In 0.15

0.15

0.15

4.01

4.01

119.6202 480.0000

119.62

480.0000119.6202

480.00

Pos:

Zero:

Neg:

Cables

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

BUS-GEN

BUS-PDP PP

1 20 2 PVC Pos:

Zero:

9.3380 2.7043

6.6568

CBL-0001 In

29.4286

MagneticCopper

BUS-PDP PP

PANEL A-NP

1 20 1/0 EDPM/CPEPos:

Zero:

6.0558 2.0340

5.1729

CBL-0002 In

9.6293

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

PANEL A-NP

BUS-0019

1 6 2 PVC Pos:

Zero:

2.8014 0.8113

1.9970

CBL-0004 In

8.8286

MagneticCopper

PANEL A-NP

BUS-PANEL B-NP

1 20 2 PVC Pos:

Zero:

9.3380 2.7043

6.6568

CBL-0005 In

29.4286

MagneticCopper

BUS-0018

BUS-IN-GRADE

JB

1 180 2 PVC Pos:

Zero:

15.7813 4.5703

11.2500

CBL-0006 In

49.7344

MagneticCopper

BUS-IN-GRADE

JB

DISC-DDB

1 20 2 PVC Pos:

Zero:

1.7535 0.5078

1.2500

CBL-0007 In

5.5260

MagneticCopper

DISC-DDB

BUS-0016

1 20 2 PVC Pos:

Zero:

1.7535 0.5078

1.2500

CBL-0008 In

5.5260

MagneticCopper

BUS-0017

PANEL-DBL1

1 20 2 PVC Pos:

Zero:

9.3380 2.7043

6.6568

CBL-0009 In

29.4286

MagneticCopper

BUS-IN-GRADE

JB

DISC-DRC

1 450 2 PVC Pos:

Zero:

39.4531 11.4258

28.1250

CBL-0010 In

124.3359

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

DISC-DRC

PANEL-RCDH

1 5 2 PVC Pos:

Zero:

0.4384 0.1270

0.3125

CBL-0011 In

1.3815

MagneticCopper

PANEL-RCDH

BUS-0022

1 10 2 PVC Pos:

Zero:

0.8767 0.2539

0.6250

CBL-0012 In

2.7630

MagneticCopper

BUS-0023

PANEL-RCDL

1 10 2 PVC Pos:

Zero:

4.6690 1.3522

3.3284

CBL-0013 In

14.7143

MagneticCopper

PANEL-TBDH

BUS-0024

1 10 2 PVC Pos:

Zero:

0.8767 0.2539

0.6250

CBL-0014 In

2.7630

MagneticCopper

BUS-0025

PANEL-TBDL

1 5 4/0 PVC Pos:

Zero:

0.7396 0.5744

1.4146

CBL-0015 In

2.3310

MagneticCopper

PANEL-RCDH

PANEL-TBDH

1 600 2 PVC Pos:

Zero:

52.6042 15.2344

37.5000

CBL-0016 In

165.7813

MagneticCopper

PANEL-TBDL

PANEL-MDP GS

1 100 4/0 PVC Pos:

Zero:

14.7929 11.4876

28.2914

CBL-0017 In

46.6208

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

PANEL-MDP GS

PANEL SUB-A GS

1 3 2 PVC Pos:

Zero:

1.4007 0.4056

0.9985

CBL-0018 In

4.4143

MagneticCopper

BUS-0026

PANEL-LPDL

1 10 2 PVC Pos:

Zero:

4.6690 1.3522

3.3284

CBL-0019 In

14.7143

MagneticCopper

PANEL-TBDH

BUS-PNL LP

LINESIDE TAP

1 800 2 PVC Pos:

Zero:

70.1389 20.3125

50.0000

CBL-0020 In

221.0417

MagneticCopper

PANEL-LPDH

BUS-0034

1 6 2 PVC Pos:

Zero:

0.5260 0.1523

0.3750

CBL-0021 In

1.6578

MagneticCopper

DISC-DOP

BUS-0039

1 50 2 PVC Pos:

Zero:

4.3837 1.2695

3.1250

CBL-0022 In

13.8151

MagneticCopper

BUS-0040

PANEL-OPDL

1 6 2 PVC Pos:

Zero:

2.8014 0.8113

1.9970

CBL-0023 In

8.8286

MagneticCopper

BUS-PNL LP

LINESIDE TAP

DISC-DOP

1 500 2 PVC Pos:

Zero:

43.8368 12.6953

31.2500

CBL-0024 In

138.1510

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

BUS-PNL LP

LINESIDE TAP

PANEL-LPDH

1 1 2 PVC Pos:

Zero:

0.0877 0.0254

0.0625

CBL-0025 In

0.2763

MagneticCopper

2-Winding Transformers

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

XF2-SITE BUS-0019 D 208 83

BUS-0018

WG 480 36

30.0 Pos:

Zero:

102.1367

102.1367

45.9600

45.9600

XFMR-TDB BUS-0016 D 480 36

BUS-0017

W 208 83

30.0 Pos:

Zero:

123.5100

,300.0000

101.7133

,300.0000

XFMR-TLP BUS-0034 D 480 36

BUS-0026

W 208 83

30.0 Pos:

Zero:

97.5200

,300.0000

80.3100

XFMR-TOP BUS-0039 D 480 18

BUS-0040

W 208 42

15.0 Pos:

Zero:

202.2467

,600.0000

166.5533

,600.0000

In

XFMR-TRC BUS-0022 D 480 36

BUS-0023

W 208 83

30.0 Pos:

Zero:

128.6567

,300.0000

105.9500

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

XFMR-TTB BUS-0024 D 480 90

BUS-0025

W 208 208

75.0 Pos:

Zero:

38.0827

,320.0000

31.3613

,320.0000

Three Phase Fault

Single Line to Ground

Line to Line Fault

Line to Line to Ground

All BusesFaulted Bus

Yes

Yes

Yes

No

No

Motor Contribution

Transformer Tap

Xformer Phase Shift

Yes

Yes

Bus Voltages

Branch Currents

Phase or Sequence

Fault Current Calculation

Asym Fault Current at Time 0.50

First Bus From Fault

First Branch From Fault

Report phase quantities

Asymmetrical RMS (with DC offset and Decay)

Cycles

Project: Kennecott

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

BUS-GEN 561 00561 668 00668

InCABLECBL-0001 0 0000 000 InGENGEN-0001 668 00668561 00561 561

BUS-PANEL B-NP 546 00538 625 00604

InCABLECBL-0005 625 00604546 00538 538

BUS-PDP PP 556 00552 651 00640

InCABLECBL-0002 0 0000 000 InCABLECBL-0001 651 00640556 00552 552

DISC-DDB 202 00274 212 00281

InCABLECBL-0008 0 0000 000 InCABLECBL-0007 212 00281202 00274 274

DISC-DOP 159 00162 161 00163

InCABLECBL-0022 0 0000 000 InCABLECBL-0024 161 00163159 00162 162

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

DISC-DRC 193 00246 200 00249

InCABLECBL-0011 0 0000 000 InCABLECBL-0010 200 00249193 00246 246

PANEL A-NP 552 00547 640 00627

InCABLECBL-0005 0 0000 000 InCABLECBL-0004 0 0000 000 InCABLECBL-0002 640 00627552 00547 547

PANEL SUB-A GS 381 000 386 000

InCABLECBL-0018 386 000381 000

PANEL-DBL1 369 000 377 000

InCABLECBL-0009 377 000369 000

PANEL-LPDH 168 00179 169 00179

InCABLECBL-0021 0 0000 000

InCABLECBL-0025 169 00179168 00179 179

PANEL-LPDL 329 000 331 000

InCABLECBL-0019 331 000329 000

PANEL-MDP GS 381 000 387 000

InCABLECBL-0018 0 0000 000 InCABLECBL-0017 387 000381 000

PANEL-OPDL 273 000 274 000

InCABLECBL-0023 274 000273 000

PANEL-RCDH 193 00246 200 00249

InCABLECBL-0016 0 0000 000 InCABLECBL-0012 0 0000 000 InCABLECBL-0011 200 00249193 00246 246

PANEL-RCDL 354 000 360 000

InCABLECBL-0013 360 000354 000

PANEL-TBDH 182 00213 185 00214

InCABLECBL-0014 0 0000 000 InCABLECBL-0020 0 0000 000 InCABLECBL-0016 185 00214182 00213 213

PANEL-TBDL 391 000 397 000

InCABLECBL-0017 0 0000 000 InCABLECBL-0015 397 000391 000

Project: Kennecott

Base Project

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus

2.000MaxTripTime @2.0s 0.7913.88 18.00

0.208BUS-GEN 0.000.56 0.20 0.00 0.000 2.000 In Box No Arc-rated PPE Required

2.000PD-PNL B FEDR 0.7713.62 18.00

0.208BUS-PANEL B-NP 0.550.55 0.20 0.20 0.000 2.000 In Box No Arc-rated PPE Required

2.000PD-GEN 0.7813.79 18.000.208BUS-PDP PP 0.560.56 0.20 0.20 0.000 2.000 In Box No Arc-rated PPE Required

2.000PD-SITE-FEDR 0.4711.35 18.00

0.480DISC-DDB 0.200.20 0.20 0.20 0.000 2.000 In Box No Arc-rated PPE Required

2.000PD-FEDR LP 0.3710.08 18.00

0.480DISC-DOP 0.160.16 0.16 0.16 0.000 2.000 In Box No Arc-rated PPE Required

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcin…